Automatically parent bones in Blender 3D to objects matching the pattern. Useful for rigging robots and mechanical skeletons.

AutoParent.py

import bpy

def parent_object_to_bone_by_name(armature, obj):
    # Remove the 'O' prefix from the object's name to find the corresponding bone
    bone_name = obj.name[1:] if obj.name.startswith("O") else None
    
    if bone_name and bone_name in armature.pose.bones:
        target_bone = armature.pose.bones[bone_name]
        
        # Store the original world matrix of the object
        original_matrix = obj.matrix_world.copy()
        
        obj.parent = armature
        obj.parent_type = 'BONE'
        obj.parent_bone = target_bone.name
        
        # Restore the original world matrix to prevent moving the object
        obj.matrix_world = original_matrix
    else:
        print(f"No corresponding bone found for object '{obj.name}'.")

armature = bpy.data.objects['Skeleton']  # Adjust if your armature has a different name

# Iterate over all selected objects
for obj in bpy.context.selected_objects:
    if obj.type == 'MESH' and obj != armature:
        parent_object_to_bone_by_name(armature, obj)